Are you sure the 16G taken up in the RAM is due to the region server? :Yes Are you having any other cache configuration like bucket cache? :No
Are you allocating any Direct_memory for the region servers? :No So when does this raise to 16G happen - is it after the regions are created or even before them i.e just when you start the region server? : Even before regions are created. Which version of hbase is it? 1.1.2 On Dec 6, 2017 4:02 PM, "ramkrishna vasudevan" < ramkrishna.s.vasude...@gmail.com> wrote: > Few more questions, > Are you sure the 16G taken up in the RAM is due to the region server? Are > you having any other cache configuration like bucket cache? > Are you allocating any Direct_memory for the region servers? > > So when does this raise to 16G happen - is it after the regions are created > or even before them i.e just when you start the region server? Which > version of hbase is it? > > Regards > Ram > > On Wed, Dec 6, 2017 at 3:57 PM, Lalit Jadhav <lalit.jad...@nciportal.com> > wrote: > > > Hi Ramkrishna, > > > > Thanks for reply, > > Right now I am not performing any operation on HBase(it is idle), Still, > > utilization is 16GB. But when I shut down them, It frees this memory. > > > > On Wed, Dec 6, 2017 at 2:41 PM, ramkrishna vasudevan < > > ramkrishna.s.vasude...@gmail.com> wrote: > > > > > Hi Lalith > > > > > > Seems you have configured very minimum heap space. > > > So when you say RAM size is increasing what are the operations that > you > > > are performing when the memory increases. I can see heap is only 1G but > > > still your memory is 16G.Are you sure that 16G is only due to Region > > > servers? Are you having heavy writes or reads during that time. > > > > > > Regards > > > Ram > > > > > > On Wed, Dec 6, 2017 at 2:31 PM, Lalit Jadhav < > lalit.jad...@nciportal.com > > > > > > wrote: > > > > > > > Adding More info, > > > > > > > > Regions per region server : 13-15 Regions per RS > > > > > > > > memory region server is taking : 16GB > > > > > > > > Memstore size : 64 MB > > > > > > > > configured heap for Master : 1 GB > > > > > > > > configured heap for RegionServer : 1 GB > > > > > > > > On Tue, Dec 5, 2017 at 5:40 PM, Lalit Jadhav < > > lalit.jad...@nciportal.com > > > > > > > > wrote: > > > > > > > > > Hello All, > > > > > > > > > > When we do any operations on the database(HBase), RegionServers are > > > > taking > > > > > too much ram and not releases until we restart them. Is there any > > > > parameter > > > > > or property to release ram or to restrict RegionServers to take > this > > > much > > > > > of memory? Help will be appreciated. > > > > > > > > > > -- > > > > > Regards, > > > > > Lalit Jadhav > > > > > Network Component Private Limited. > > > > > > > > > > > > > > > > > > > > > -- > > > > Regards, > > > > Lalit Jadhav > > > > Network Component Private Limited. > > > > > > > > > > > > > > > -- > > Regards, > > Lalit Jadhav > > Network Component Private Limited. > > >
